Flush-tank for water-closets



(No Madel.) 2 Sheets-Sheet 1.

J.. CRAWFORD 8u J. H, YOUNG. PLUSH TANK FOR WATER GLosBTs.

N/o. 536 851. L Patented Apr. 2, 1895.

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(No Model.) 2 Sheets--SheefJ 2. J. CRAWFORD 8v J. H. YOUNG.

FLUSH TANK FOR WATER GLOSETS.

Patented Apr. 2, 1895.

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UNITED STATES PATENT OFFICE.

JAMES ORAVFORDA AND JOSEPH H. YOUNG, OF BOSTON, MASSACHUSETTS.

FLUSH-TANK FOR WATER-C`LOSE'l'S.

SPECIFICATION forming part of Letters. Patent No. 536,851, dated April 2, 1 895 Application tiled September 28, 1894. Serial No. 524,363. (No model.)

To a/ZZ w72 om it' may concern;

Be itA known that we, JAMES CRAWFORD and JOSEPH H. YOUNG, citizens of the United States, and residents of Boston, in the county of Suolk and State of Massachusetts, have jointly invented new and useful Improve.- ments in Flush-Tanks for Tater-Closets, of

which the following, taken in connection with the accompanying drawings, is'a specification.

This invention relates to improvements in flush tanks for water closets, andit relates to that class of devices in which a fore. and after wash is produced respectively at the time of depressing the seat of the water closetl and at the time and after leaving it, as will hereinafter be more fully shown and described, reference being had to the accompanying drawings, wherein- Figure 1 represents a top plan view of the invention, showing it in its normal position. Fig. 2 represents a longitudinal section on the line 2-2 shown in Fig. l. Fig. 3 represents a sectional view showing in full lines the positions of the tiush tank levers during the depression of the seat and showing in dotted lines the said parts in position at the time the occupant leaves the seat of the water closet. Fig. 4 represents an end view of the iush tank and water closet as seen from Xin Fig. l. Fig. 5 represents a detail top plan view of one of the seat supporting brackets; and Fig. 6 represents a longitudinal section on the line 6-6 shown in Fig. 5.

j Similar letters refer to similar parts wherever they occur on the different parts of the drawings. v

A in Fig. 4 represents the water closet bowl as usual, and B in said ligure represents the upright wall of the room in which the water closet is located. To said walls are secured ina suitable manner brackets C C, one on each side of the bowl as is common in devices of this kind.

D is the perforated seat as usual, the rear end of which is hinged at d (Fig. 4) to adjustable bearings O C', secured to the brackets O, O, as shown iu Figs. 5 and 6. For the pu'rpose of properly adjusting the seat D relative lto the bowl Ait is essential that the bearings provided with a valvef which when open al-v lows the water to Iiow through pipe f into the tank E as usual.

The admission of water to the tank E is 4 regulated by a hollow ball lioat G, connected to alever g, pivoted at g and having a projection g, adapted to close the valve f when the proper quantity of water is fed into the tank E as is common in devices of this kind.

H is the discharge pipe leading from the bottom of the tank E to the rear of the water closet bowl A, as usual,"which is normally closed by means of a valve I to which is attached a valve rod t' and tube i as usual.

K is the bracket secured to the upper end of the tank E, and to said bracket is pivoted at 7c the lever L, to which is connected the.

rod Z, the lower end of which is pivoted to the rear end of the seat lever M, which is pivoted at m to one of the seat brackets O and pro vided at its forward end with a roller m', (shown in Fig. 4) against which the pivoted seat D is normally made to rest, as fully rshown in Fig. 4. To the pivot lc of the lever K is secured a crank k having a roller Ak" journaled on a stud attached to its end as shown in Figs. 1, 2, 3 and 4.

N is a lever pivoted at n in a bracket secured to the tank E and to one end of said lever is pivoted the valve stem i as shown in Figs. 1, .25 and 3. The other, or free end of said lever N is preferably provided with a wedge shaped projection N which is actuated by the roller lo on the crank 7c and intervening automatic mechanism so as to open and close the valve l with a comparatively quick motion, when the seat D is depressed, and to open said valve and close it with acomparatively slow motion as soon as the pressure on the seat D is removed,thus causingalight fore wash of the water from the tank E to enter the bowl previous to using it and an increased and prolonged after wash to be forced IOO into the bowl as soon as a person leaves the seat. v

The intervening automatic mechanism above mentioned consi-sts of aweighted lever O pivoted at O and having on its under side notches or recesses O", O3, adapted to receive a pin or pin and roll n', on the lever N as shown in Figs. 2 and 3.

O4, in Fig. 1, is a side projection on the weighted lever O against which the roller 7o comes in contact to raise said lever O to its highest position shown in full lines in Fig. 3, when the seat D is depressed and during such depression of said seat the roller 7c on the crank 7a comes in contact first with the valve lever projection N causing the valve I to be opened during such motion and held temporarily so by the pin n entering the notch O3 in the weighted lever O; and as the roller k" reaches its right hand position shown in Fig. 3 it comes in contact with the side projection O4 on the lever O by which the latter is raised sufficiently to liberate the valve lever N and close its valve I, and during such closing movement of the lever N the weighted lever O assumes the position shown in full lines in Fig. 3 with the pin n on the lever N as received in the notch O, on the lever O as shown in the said full lines of Fig. 3. The notch Ois however not essential as it is only necessary that the pin n. should serve as a rest or support for the lever O while in this position.

When the occupant leaves the seat D the lever L and its crank t" are automatically moved from the position shown in full lines in Fig. 3 to the normal position shown in dotted lines in said Fig. 3, and during such return motion the roller 7c" comes in contact with the projection N on the valve lever N by which the valve I is opened and held so by the weighted lever O, the notch O3 on which receives the pin n of the valve lever N and thereby holds the valve lever in the open position shown in dotted lines in Fig. 3, thus causing a comparative long after wash to be conducted from the tank E to the water closet bowl A. During such after wash as the water from tank E flows out through pipe H, the float G gradually sinks and its lever g comes in contact with a bent wire P att-ached to the weighted lever O causing the latter to be slightly raised sufficiently to disengage the valve lever pin n from the locking notch O3 on said lever O by which the valve leverN is released and allowed to assume its normal closed position by which the discharge valve I is closed.

During the fall of the float G the supply valve f is automatically opened causing a proper supply of water to the tank E until the float G is raised by the waterin the tank E to its highest normal position, when the supply is automatically cut 0E, by the closing of the valvef, and so on during the operation of the device.

What we wish to secure by Letters Patent and claim is 1. In a Hush tank for water closets, a discharge valve and a pivoted lever connected thereto and carrying a pin n', combined with a crank actuated by the movable bowl seat and operating to open the discharge valve when the seat is depressed or raised, a pivoted weighted lever/O having a recess 03 adapted to engage the pin n and temporarily hold the discharge valve open to produce a preliminary wash, a projection carried by said weight- `cd lever and engaged by said crank at the end of the movement of the latter to release and close said discharge valve, and a pivoted float lever controlling a water supply pipe and operating to release and close the discharge valve at the end of the after wash, substantially as described.

2. In a flush tank for water closetsasupply cock iioat and Iiush valve combined with a pivoted valve lever N, having a projection n', a crank 7a actuated by the bowl seat and a pivoted weighted lever O having a recess O adapted to engage the valve lever pin n and having a projection O4 adapted to engage with the crank 7c', and having a downward extension P, adapted for engagement with a float lever for releasing the valve lever at the end ot the after wash substantially as and for the purpose set forth.

3. In a flush tank for water closets, a pivoted valve lever N connected to the discharge valve and having a cam shaped projection N and a locking projection n', combined with a weighted pivoted and notched lock lever O having a downward extension P and a lateral projection o4, a crank actuated by the yielding seat D and adapted to impart a yielding motion to the valve lever and lock lever for opening and closing the Valve with a fore and after variable wash, and a iioat for engaging the extension P at the end of the after wash to close the valve, substantially as described.

In testimony whereof we have signed our naines to this specification, in the presence of two subscribing witnesses, on this Zetth day ot' September, A. D. 1894.

JAMES CRAWFORD. JOSEPH Il. YOUNG.' Titnessesr ALBAN ANDRN,

LAURITZ N. MLLER.

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